Gree FLEXX Series Bedienungsanleitung
1
DC INVERTER HEAT PUMP
CONDENSING UNIT SERVICE MANUAL
(GC202006-I)
Capacity: 24kBtu/h~60kBtu/h
Rate Frequency: 60Hz
Operation Range:
Cooling: 5°F(-15°C)~129.2° F(54° C )
Heating: -22°F (-30°C)~75.2°F (24°C)
FLEXX
Foreword
Thank you for choosing Gree air conditioner/heat pumps. In order to correctly install and use our units, and
for the satisfactory operation effect, please read this manual carefully.
This manual specifies safe operation requirements from perspectives of product introduction, control,
troubleshooting and maintenance, as well as basic principles and implementation methods. Professional
operators must abide by relevant national (local) safety requirements and technical specifications set forth in
this manual during operations; otherwise, the air conditioning system may fail or be damaged, and personnel
safety accident may also occur.
Safety Notice
Before using the air conditioner, please first read the instruction manual.
Before installing the air conditioner, please first read the instruction manual.
Before repairing the air conditioner, please first read the technical service manual.
CONTENTS
1 Product Introduction ......................................................................................................3
1.1 Lists of Units .......................................................................................................................... 3
1.2 Electrical Parameters ............................................................................................................. 5
2 Control.............................................................................................................................6
2.1 Operation Mode ..................................................................................................................... 6
2.2 Control Mode ......................................................................................................................... 8
2.3 Functions ............................................................................................................................. 10
3 Troubleshooting............................................................................................................14
3.1 Wiring Diagrams .................................................................................................................. 14
3.2 PCB Layout .......................................................................................................................... 17
3.3 Error Code ........................................................................................................................... 25
3.4 Troubleshooting ................................................................................................................... 26
3.5 Failures Not Caused by Errors ............................................................................................. 53
4 Maintenance..................................................................................................................55
4.1 System Diagram .................................................................................................................. 55
4.2 Connection Pipe Vacuum Pumping ...................................................................................... 55
4.3 Refrigerant Charging ............................................................................................................ 57
4.4 Maintenance of Major Components ...................................................................................... 59
4.5 Removal of Major Components ............................................................................................ 69
4.6 Explosive View and Lists of Parts ....................................................................................... 104
Appendices ....................................................................................................................110
1 Resistance/Temperature Lists of Temperature Sensors .........................................110
1.1 Voltage List of 15 KΩ Temperature Sensors ....................................................................... 110
1.2 Voltage List of 20 KΩ Pipeline Temperature Sensors ......................................................... 112
1.3 Voltage List of 50 KΩ Discharge Temperature Sensors ...................................................... 114
2 Temperature/Pressure List of Refrigerant ................................................................117
3 Operation Tools ..........................................................................................................117
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
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Safety Notice on Maintenance
PROHIBITED：
(1) Do not pierce or burn.
(2) Please note that refrigerant may be odorless.
(3) The appliance shall be stored in a room without continuously operating ignition sources (For example:
open flames, an operating gas appliance or an operating electric heater).
(4) Indoor unit adopts special joints that can’t be detached. The installation method is the same with the
common joints. However, because the joint can’t be detached, if it is badly connected and causes leakage,
it needs to be cut and replaced by a new one through welding.
(5) Using unsuitable parts or tools may lead to electric shock or fire hazard.
(6) If refrigerant leaks during maintenance, please ventilate the room immediately. Heavy leakage may lead to
breathing difficulty, severe injury or death.
(7) Disconnect power before disassembling the appliance for maintenance.
(8) The appliance should be maintained and cared by authorized technical personnel with necessary
qualifications.
WARNING:
(1) If the working place is more than 2m's high, please wear a safety helmet, gloves and a safety belt.
(2) Never mix any other substances except the specified refrigerant into the refrigerant circuit.
(3) When re-locating the appliance, check whether the new location is strong enough to withstand the weight
of the appliance.
(4) If there is refrigerant leak, please fix the leak before charging in the refrigerant. After refrigerant is charged,
check for refrigerant leaks. If you cannot spot the leak, stop the maintenance work. Please evacuate the
system and close the service valve to prevent refrigerant leaking into the room.
(5) Prepare suitable tools and protectors.
(6) If you need to carry out maintenance or check the electric circuit without cutting off the power, please be
careful not to touch the electrical parts.
NOTICE:
(1) If the appliance is maintained at a humid place, it should be grounded to avoid electric shock.
(2) Never repair the unit with wet hands. Operating the unit with wet hands may lead to electric shock.
(3) If the unit is not correctly grounded, please check and fix it.
(4) Before cleaning the unit, please disconnect power to prevent the inner fan from starting up and running at
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
2
high speed; Otherwise personal injury may occur.
(5) Measure the insulation resistance after maintenance. The resistance must be 1M or higher. Bad insulation
may lead to electric shock.
(6) Welding and cutting work must be done in a well-ventilated place.
(7) Gas appliances, heaters and other fire sources should be kept away from the installation and maintenance
site.
(8) Maintenance should be done according to suggestions of the manufacturer.
(9) Maintenance should be done only after the refrigerant is completely reclaimed from the unit.
OBSERVED：
(1) After the maintenance work is done, check the drainage of indoor unit.
(2) Do not tilt the unit, otherwise, water may spill out from the unit and make the floor and furniture wet.
(3) Disassembly of the unit, handling of the refrigerant, oil and accessories should all be done according to
applicable local rules and regulations.
Safety Notice on Operation
PROHIBITED:
(1) Never try to modify the unit, otherwise, it may cause electric shock, overheat or fire hazard.
(2) If the power cord or conducting wires are scratched, please replace them.
(3) Never use connected or extended power cord or share the power socket with other appliances.
(4) Prepare a specialized power circuit for the appliance.
WARNING:
(1) If the power plug is dirty, please clean it before inserting it to the power socket. If the power plug is loose,
please tighten it up.
(2) Do not damage the power cord. A damaged or refitted power cord may lead to electric shock or fire hazard.
(3) Check frequently whether the appliance is in good condition.
NOTICE:
(1) After changing the batteries of remote control, please discard them to avoid being swallowed by children.
(2) When the unit is working, do not remove the fan cover.
(3) Do not use organic solvents to wipe the controller operating panel.
(4) Before cleaning the unit, cut off the power supply.
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
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1 Product Introduction
1.1 Lists of Units
1.1.1 List of Outdoor Units
Model
Power Supply
Finished Product Code
Appearance
V/Ph/Hz
FLEXX36HP230V1AO
208/230V-1Ph-60Hz
CF090W1530
FLEXX60HP230V1AO
208/230V-1Ph-60Hz
CF090W1820
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
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1.1.2 List of Indoor Units
Model
Cooling/Heating
Capacity (Btu/h)
Power Supply
Finished
Product Code
Appearance
V/Ph/Hz
Airhandler
FLEXX24HP230V1AH
24000/24000
208/230V-1Ph-60Hz
EH010N0040
Airhandler
FLEXX36HP230V1AH
36000/36000
208/230V-1Ph-60Hz
EM116N0890
Airhandler
FLEXX48HP230V1AH
48000/48000
208/230V-1Ph-60Hz
EH010N0050
Airhandler
FLEXX60HP230V1AH
54000/54000
208/230V-1Ph-60Hz
EH010N0031
NOTE: 1 Ton =12000Btu/h = 3.517kW
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
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1.2 Electrical Parameters
Model
Power supply
Circuit breaker capacity
V/Ph/Hz
A
FLEXX36HP230V1AO
208/230V-1Ph-60Hz
35
FLEXX60HP230V1AO
208/230V-1Ph-60Hz
45
Model
Power Supply
Fuse Capacity
Circuit Breaker Capacity
V/Ph/Hz
A
A
FLEXX24HP230V1AH
208/230V-1Ph-60Hz
3.15
15
FLEXX36HP230V1AH
208/230V-1Ph-60Hz
3.15
15
FLEXX48HP230V1AH
208/230V-1Ph-60Hz
3.15
15
FLEXX60HP230V1AH
208/230V-1Ph-60Hz
3.15
15
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
6
2 Control
2.1 Operation Mode
2.1.1 Cooling Mode
GREE DC INVERTER HEAT PUMP CONDENSING UNIT
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2.1.2 Heating Mode
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2
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